Glencoe Math: Course 2, Volume 2
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Glencoe Math: Course 2, Volume 2 View details
3. Area of Composite Figures
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Exercise 27 Page 638

Use the formula for the area of a parallelogram.

4.7m

Practice makes perfect

We are given a parallelogram with an area of 15.04 square meters and a height of 3.2 meters.

Triangle
We want to find the base of the parallelogram. To do so, let's recall that the area of a parallelogram is the product of any base b and its height h. A= b h In this case, A= 15.04, and h= 3.2. Let's substitute these values into the formula. 15.04= b (3.2) Now we can solve the equation we got for b to find the base of the parallelogram. We can do this by using the Division Property of Equality.
15.04=b(3.2)
15.04/3.2=b(3.2)/3.2
15.04/3.2=b(3.2)/3.2
15.04/3.2=b
4.7=b
b=4.7
We found that b= 4.7 is a solution to the equation. This means that the base of the parallelogram is 4.7 meters.